My polling station has always been in a school, and it's been at a church school for the past 8 years.  It's never bothered me, even as a pinko commie atheist type.

Here's why:

1.  Accessibility.  I live in a city and there are polling places in each neighborhood.  I think it is decided by population density, so that those in rural areas have to get in a car and drive (but there are services those with no transportation), whereas those in urban areas can usually walk to their polling place, because there are that many.  The key thing is to avoid long lines.  In our idiot system, election day is not a holiday, so if you are going to vote, you do it before or after work.  Laws vary from state to state, but most give people the right to take off an hour or so from work to vote.  But this is not universal and is rarely tested.  Anyway, when people don't vote, they often blame it on lack of time to do so.  So the shorter the lines, the less time it takes.  And short lines require more polling places.

2.  Well, there are only so many schools.  Maybe suburbs have a nice voter to school ratio, but not in the city.  There are large, overcrowded public schools here.  So where else is there?  Weather is also a factor, so it must be indoors.  Government offices?  There are laws against electioneering withing x amount of feet from a polling station, and government offices are de facto partisan offices.  So my polling place is the Lutheran church & day school.  I never wait in line and it is a block from my place.  Making voting easy.

3.  Election judges and poll watchers.  These people have been trained and should be doing their job to oversee fairness of the process no matter what venue they are in.  I repeat, it's not the members of the Church who are overseeing the voting.  It's election judges and poll watchers, and both parties are afforded an equal number of each.  

4.  And my area is overwhelmingly Democratic.  Even though people vote at churches.  I guess people don't consider the cross over the doorway as GOP electioneering.  

I realize there is a serious issue with the sep. of Church and State here.  But at a non-religious polling place, I watched as election judges threw away stacks of ballots deemed uncountable by the Diebold machines, though, looking at them, it seemed pretty obvious to me the voters' intentions.  Heh.  This, to me, seems like a hell of a lot bigger problem than the fact that I cast my vote in a parochial school.  I just can't get outraged.  Sorry.  

I do sympathize with not being able to find your polling station.  This seems to be common in the burbs.  

Come, my friends, 'Tis not too late to seek a newer world.